How to protect the optical antenna simply and effectively is an important problem that should be resolved for the laser warning equipment to be used in adverse field conditions.

To overcome the atmospheric attenuation effect,the non-line-of-sight scattering atmospheric optical communication system usually adopt an optical antenna to enhance the signal collection ability and increase its communication distance.

Several developing photonics technologies of the antenna end in phased array radars are presented,including the microwave quasi-optical active array,the optical controlled configurable antenna and the future idea photonics antenna.

Ultrafast Photophysical Properties of Light-harvesting Complexes (LH2) in Purple Bacteria;

Photoinduced ultrafast dynamics in light-harvesting and reaction center of purple bacteria;